What is the mol fraction na2so4
What is the mol fraction Na2SO4 in a solution which is 11.5% by weight Na2SO4 (molar mass Na2SO4 = 142.06 g/mol and H2O = 18.016 g/mol)?
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The heat of formation of liquid aluminum, Al (l) is about 10.7 kJ/mol. The entropy of solid aluminum is 28 J/mol K and the entropy of liquid aluminum is 40 J/mol K. Based on these data, at what temperature (oC) should aluminum melt?
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